RELATED STORIES

UNEXPECTED ALIEN IN THE BAGGING AREA

WAR OF THE WORLDS WARNING

Humanity is NOT ready for the arrival of aliens and could be easily wiped out, expert warns

'Earth must be warned!'

What's the truth behind this video of a French female astronaut screaming a warning about aliens?

SHEER LUNAR-CY

From alien bases to missile silos, here are the strangest things UFO hunters claim to have spotted on the Moon

HE'S BACK

'King of the Red Planet' spotted on Mars and he looks just like the John Lewis Moon man

In a paper published in Nature, Steven W. Ruff and Jack D. Farmer of Arizona State University wrote: “Evidence for silica sinter deposits on Mars is important given the known capacity of such rocks to capture and preserve microbes, making them ideal targets in the search for ancient life on Mars.

“Hydrothermal spring deposits of silica (sinter) have long been targets in the search for fossil life on Mars and early Earth because of their ability to capture and preserve biosignatures.”

SpaceX plan to make us a multiplanetary species with mission to Mars

The scientists said their findings "satisfy an a priori definition of potential biosignatures", which means the pair think it's likely they were formed by living organisms.